1. How did velocity (v) and velocity squared (v2) relate to the height from which the ball was released? Use the relationships from your graphs in your explanation. Which one, if any, was linearly related to the height?

A 878-kg (1940 lb) dragster, starting from rest, attains a speed of 25.9 m/s (57.9 mph) in 0.62 s. (a) Find the average acceleration of the dragster during this time interval?

Giant and supergiant stars are rare because

Would you expect the bonds in ammonia to be polar covalent?

A contact force exists between two interacting objects that physically contact each other. a non-contact force exists when two interacting objects are not in physical contact but can still influence each other. true false

Joan stirred a pot of hot soup with a metal spoon. after a minute or two, the handle of the spoon became too hot to hold. what kind of heat transfer does this represent?

Newton's third law states that when an object exerts a force on another object, the second object exerts an equal but opposite force on the first object. Which of the following shows an example of this? a.

A car is moving 14.4 m/s when it hits the brakes. It slow from 78.8 m, which take 9.92s. It then accelerates at 1.83 m/s 2 for 4.50 s. What is the total displacement?

Select all of the answers that apply. What conditions on Earth are unique from other planets in our solar system?

Which is a chemical change

A 20-N falling object encounters 4 N of air resistance. The magnitude of the net force on the object is?